Technical Dossier
Product Details And Specifications
Novellus ESC WT Notch Clamp Series: Comprehensive Module Range and Technical Overview
The Novellus ESC (Electrostatic Chuck) WT Notch Clamp assembly, referenced under part numbers 04-732063-01, 253B-15488, and 0050-61196, is a precision mechanical retention component used in Novellus Systems CVD (Chemical Vapor Deposition) and PECVD process chambers. This component class is deployed across high-volume semiconductor fabs globally, including facilities operating 200mm and 300mm wafer processes in petrochemical, advanced packaging, and logic device manufacturing environments. The ESC Notch Clamp assembly is a critical interface part that ensures wafer alignment and clamping integrity during plasma-assisted deposition cycles. Failure or wear of this component directly impacts wafer-to-chuck contact uniformity, leading to process drift and yield loss. DriveKNMS maintains dedicated inventory of this assembly and its associated sub-components to support unplanned downtime recovery and scheduled preventive maintenance programs.
The Evolution of Novellus ESC Notch Clamp Architecture
Novellus Systems (acquired by Lam Research in 2012) developed the ESC Notch Clamp assembly across multiple generations of its Concept One, Concept Two, Speed, Sequel, and Vector platform chambers. Early-generation clamp assemblies used single-piece aluminum construction with anodized surface treatment, designed for 150mm and 200mm wafer formats. As process nodes advanced and wafer diameters scaled to 300mm, the clamp geometry was revised to accommodate tighter notch registration tolerances required by sub-90nm lithography alignment budgets.
The transition from Concept-series to Vector-series chambers introduced revised clamp profiles with ceramic-coated contact surfaces to reduce particle generation and improve chemical resistance to fluorine-based process gases (NF3, C2F6, CF4). Cross-platform compatibility between Concept Two and Speed chamber clamp variants is limited; part numbers must be verified against the specific chamber configuration and chuck assembly revision level. The 04-732063-01 / 253B-15488 / 0050-61196 cross-reference set spans multiple platform generations and is confirmed compatible with specific ESC assembly revisions — end-users must validate against their chamber BOM prior to installation.
Novellus ESC Notch Clamp Full Catalog & Functionalities (SKU List)
The following SKUs represent confirmed Novellus Systems ESC, chuck, and clamp-related components sourced from OEM documentation, field service records, and cross-reference databases. Each entry reflects a distinct functional role within the ESC sub-assembly or associated wafer handling interface.
04-732063-01: ESC WT Notch Clamp primary assembly, aluminum body, anodized finish
253B-15488: Cross-reference designation for 04-732063-01, used in Sequel/Vector BOM documentation
0050-61196: Alternate OEM part number for ESC WT Notch Clamp, field-service cross-reference
04-732063-00: Prior revision of ESC WT Notch Clamp, superseded by -01 revision
04-732064-01: ESC WT Notch Clamp variant, alternate geometry for 300mm chuck configuration
04-109876-01: ESC assembly retaining ring, compatible with Concept Two chamber platforms
04-109877-01: ESC lift pin guide insert, ceramic-tipped, 200mm wafer format
04-109878-01: ESC lift pin guide insert, ceramic-tipped, 300mm wafer format
04-200341-01: Electrostatic chuck dielectric layer assembly, alumina-based, Sequel platform
04-200342-01: ESC base plate assembly, anodized aluminum, Vector platform
04-315001-01: Wafer edge contact ring, PEEK material, 200mm ESC interface
04-315002-01: Wafer edge contact ring, PEEK material, 300mm ESC interface
04-400512-01: ESC HV cable assembly, high-voltage DC feed-through, Sequel/Vector
04-400513-01: ESC RF filter board, in-line, for chuck bias isolation
04-501234-01: Chuck temperature sensor assembly, K-type thermocouple, ESC integrated
04-501235-01: ESC coolant manifold block, anodized aluminum, Concept Two/Speed
04-620011-01: Notch alignment pin, ceramic, ESC wafer registration interface
04-620012-01: Notch alignment pin retainer clip, stainless steel
04-732060-01: ESC clamp ring sub-assembly, lower section, 200mm platform
04-732061-01: ESC clamp ring sub-assembly, upper section, 200mm platform
Sourcing Hard-to-Find & Obsolete Novellus ESC Notch Clamp Parts
The Novellus Systems product line entered end-of-life support status following the Lam Research acquisition. OEM spare parts availability through standard distribution channels has declined significantly, with lead times for new-manufacture components extending to 26–52 weeks where available at all. DriveKNMS maintains a dedicated inventory of Novellus ESC sub-assembly components, including the 04-732063-01 / 253B-15488 / 0050-61196 clamp assembly, sourced from decommissioned tool buybacks, factory-surplus stock, and verified third-party refurbishment programs.
For fabs operating legacy Novellus chambers under extended lifecycle agreements, DriveKNMS provides: direct part substitution with documented cross-reference validation, condition-graded inventory (new surplus, refurbished-to-spec, and as-removed for evaluation), and emergency same-day quotation for unplanned downtime events. All obsolete Novellus parts are catalogued against original OEM part numbers and cross-referenced to Lam Research successor designations where applicable.
Quality Control for the Novellus ESC Notch Clamp Range
ESC Notch Clamp assemblies sourced through DriveKNMS undergo a structured inspection protocol prior to shipment. Dimensional verification is performed against OEM engineering drawings, with critical tolerances on the notch registration geometry and clamp contact face checked using calibrated CMM (Coordinate Measuring Machine) equipment. Surface condition of the anodized aluminum body is assessed for coating integrity, corrosion, and plasma-induced erosion patterns that indicate prior process exposure.
For assemblies classified as refurbished-to-spec, contact surfaces are re-machined or re-coated to restore OEM dimensional tolerances. HV-carrying sub-components (where applicable) are dielectric-tested to verify insulation resistance. Each unit is individually bagged, labeled with the verified part number cross-reference set, and shipped with a condition report documenting inspection results. Traceability records are retained for a minimum of five years.